Hlola imboni echumayo yemifino ebamba ukushisa e-Ningan, eSifundazweni sase-Heilongjiang, evela njengetshe legumbi lezolimo ezisezingeni lokuqala. Cishe ngezindawo zokugcina izithombo ezingu-40,000, okuhlanganisa nezingu-4,000 ezizinikele ekutshaleni izithelo nemifino, lesi sifunda sikhiqiza amathani omkhiqizo ahlaba umxhwele angu-136,000 ngonyaka, okunikela ekuchumeni kwasekhaya nasezimakethe zamazwe ngamazwe.
Ekuqaleni kwentwasahlobo, izindawo zokugcina izithombo zaseNingan, eSifundazweni saseHeilongjiang, zimatasatasa ngokuphila njengoba izithelo nemifino kuchuma phakathi kwezindawo ezivalelwe kuzo. Ngokuhamba kweminyaka, i-Ningan isebenzise imboni yayo yemifino ebamba ukushisa njengengxenye eyinhloko yendawo yayo yezolimo, ishintshela emikhiqizweni yekhwalithi ephezulu. Njengamanje kunezindawo zokugcina izithombo ezingaba ngu-40,000 esifundeni, ezingu-4,000 zazo ezizinikele ekutshaleni izithelo nemifino. Lesi sifunda sikhiqiza amathani ayi-136,000 omkhiqizo minyaka yonke, owanelisa izimakethe zasekhaya nezamazwe ngamazwe futhi andisa amaholo abalimi basekhaya.
Indaba yempumelelo yemboni ye-greenhouse ye-Ningan isebenza njengesibani sethemba emiphakathini yezolimo, ekhombisa amandla okukhula okusimeme kanye nokuchuma komnotho kulo mkhakha. Njengoba isidingo semikhiqizo yeqophelo eliphezulu sikhula, izinhlelo ezifana nalesi eseNinana zigqamisa ukubaluleka kokusungula izinto ezintsha kanye nokuthuthukiswa kwamasu kwezolimo zesimanje. Ngokuzibophezela ekusebenzeni kahle kanye nokugxila emikhubeni eqhutshwa yimakethe, i-Ningan ikhombisa amandla okuguqula amabhizinisi ezolimo ekuqhubekiseni ukuvuselelwa kwezindawo zasemakhaya kanye nokwenza ngcono izinga lokuphila.
I-Ningan ayigcinanga nje ngokukhuphula umkhiqizo wezolimo, kodwa futhi yavula indlela yokuthuthukisa indlela yokuphila yabalimi bendawo. Njengoba ezinye izifunda zifuna ukuphindaphinda le mpumelelo, indaba ka-Ning'an isebenza njengobufakazi bamandla okuguqula amasu ezinhlelo zezolimo ekuqhubekiseni intuthuko esimeme kanye nokuvuselelwa kwezindawo zasemakhaya.