- The sysrerns we consirucl should lasr as long as possible, and iaire leasirnarnrenanee. . These syrienrs, irreied by use sun, should produce nor only men own needs, our ihe needs oi lie people crearing or eoniroiirng rhern. Thus, rhey are susrai- naisie, as rhey susiain both ihernseives and ihose who consirucr rhem. - We an use energy io eonsoocr rhese sysrcrns, pm yidrng rhar m rherr irierrme. ihey srorc or conserve more energy ihan we use in consrruei ihem or io nrainiain ihern. Mo sonian rerrnaeuihire riineipi i. Work wilh nsruie, naiher rhan agauui ihe nsrurai elemenis, lorces, pressures, processes, agencies, and evolullons, so rhai we assisr iarher ihan impede nahrrai dmhpmzms. 2. The pmblun is ihe soiuiion, everyihing wmki horh ways. ii is only how we see ihings ihar maires rhem advanrageous at noi iii rise wind blnws sold, ier us use bo|h irs sirengih end iis coolness lo advanirgei, A corollary oi ihrs principle is ihai everyrhrng is a posidye resource, s iusi up rous rowork ourioar we may use ii ns sum, 3 Maire rhc leasi change ior ihe grearesz possiirle effed e The yield oi a sysiem is iheoreiically unlimiied. Theoriiyiinuronurenumheroiusssoia resourcepss— srhie wirhin a sysrem is in ihe lirnii oi ihe iniorrnarion and ihe imagmadon oi ihe designer 5, :veryihing gardens, or has an eiieci on is. environmenr. A roiiey oi Knpmiflb'hmy iro xennquhh pow"): The role oi beneficial aurhoriry is ro rerurn iuncrion and responsibiliry bu hieand ro people, ii sumiui, no iurrher auihorriy is needed The role oi surcesslul duly: is In creare a kllrmmuged sysicin enemies rri Known: i,Thooewhrehuraeassoyrnodrsruse 2. Those unaiieerod by use 3 Those which disappearor degrade ii nor med. 1. Those reduced by use, 5.11m whlth poiiuie or desiroy orher moms it used. rol y of liesourse Managemeno A responsible human soeieiy bani me use oi resources which pennonenriy reduce yields oi sunninnoie resources, e,g poiiuranrs, persisreni poisons, ndioamves, large areas oi eonrreie nnd highwoys, sewers irom crry io Prineipie oi Diamdee Any sysrem or organism con aesepr only ihai ouanriry oi a resonree which ean he used produeiryeiy Any resource mpui beyond ihal poini rhrows ihe sysiem or organism inro disorder, oversupply oi a nsouroe u a ionn of chronic pulluhnn. uednidon oiSysm Yilld. sysreni yield is iherurn ioial oi surplus energy pniduced lry, slored, conserved, reused, or convened by rhe design, Energy is in surplus rinse ihesyrreoi irseiihas available all irs needs ior grwwm, reproduehoso and maimenanre me Role oi we in yield: Lrvrng ihings, including people, are rhe only eiiecirve inrervenrng sysrenis ro capiure resources on ihis planes. and lo produee a yield Thus, ii is ihe sum and capaciry oi hie lorrns which dmde roirl rysrem yield and mirpius. Limih ro vie 1 yield is nor n hired sum in any design sysiern. 1| is ihe measure onhe comprehension, undersrandrng, and nhiiiiy oi ihe designers and managers oi rhar design Dispersal ofFood Yield aver-nine - By seleesion of early, mid and lare season vaneries. - By pianring me some varieiy in early or lase- ripeiung srruarions . iiy seieeiion oi langryielidmg var-relies . By a general inciense in dryeisiiy in ihe sysrcm, so ihai - leai, iruii, seed and moi are all produer yields - By using sdlsmring species such as hihers, hard seeds, Inelwood, or rhizomes whieh ean be "cropped on dzmand" - By iechnioues such as preserving drying pining. and cool siorage e iiy regional rrade herween cvmnmniun, or by ihe uiiiisaiion oi land ai diiierenr aliirudas or iarirudre. rrinolpie oi Cydis Oppommlly: Every cyclic cveni increases rheopponumry ioryreid To increase ryehng is lo increase yield Cycles in naiure are diversion roures away iroin eniropic endsihl: iiseli cycles nulrienIsAgivlllg opporiuniiies ior yield, and ihus oppormniiies ior species ro oeeupy iirne niches 1ypoa oi Nkhw - Niche in space, or "urinary“ inesi nnd iorage sires) - Nidreinrrmeiryrias oiopponuniryi. - Niehe in spaceriine (uMduLesl Pn'ncipk oi Disordee Order and harmony produce energy iormher uses. Disorder consumes energy lo no usehil end, Neainess, sidiness, uniiormriy, and siraigiuness signiiy an enugyrmxinnmzd disorder in naiural syrrerru rrineipie of soess and narrnony srress may be defined as eirher preverriron olnahiral iunciirrn, or oi lorced lunciion; and (conversely) harmony as the permission oi ehosen and naiurai hummus and rhesuppiy oi essenrrai needs Princlpk oi Snbili ii is nor ihe number or diverse rhings in a design rhal leads iosralrriiry, rirsrhe numlrcr oi beneiierai eonneerrons herween rhese eomponenrs. iniororar n a Resource: lnlormarion rs ihe criricai pmlenkiall resource, ii heroines a resource only when oorained and aered upon, 2.15 REFERENCES widdingion, c. H Tools {av Though, Paladin, UK. ion, 35